Weather forecast for: Grass Lake MI
Last Update: 2:03 pm EDT Oct 9, 2026
This Afternoon: Mostly sunny, with a high near 69. Light southwest wind.
Tonight: Mostly cloudy, with a low around 53. Southeast wind 3 to 6 mph.
Saturday: Increasing clouds, with a high near 74. South southeast wind 7 to 10 mph, with gusts as high as 22 mph.
Saturday Night: A 50 percent chance of showers after 2am. Mostly cloudy, with a low around 55. South southeast wind around 8 mph, with gusts as high as 20 mph.
Sunday: A 50 percent chance of showers before 2pm. Mostly cloudy, with a high near 66. East southeast wind 6 to 8 mph.
Sunday Night: Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 52.
Columbus Day: Mostly sunny, with a high near 74.
Monday Night: A chance of showers after 2am. Partly cloudy, with a low around 58.
Tuesday: A chance of showers before 8am. Mostly sunny, with a high near 69.
Tuesday Night: Partly cloudy, with a low around 46.
Wednesday: Mostly sunny, with a high near 66.
Wednesday Night: A chance of showers. Mostly cloudy, with a low around 48.
Thursday: A chance of showers. Mostly cloudy, with a high near 67.